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Dr. David Leffell, MD

Dr. David Leffell, MD

Internal Medicine*
40+ years of experience

Dr. David Leffell, MD is an internist in New Haven, CT and has over 40 years of experience in the medical field. Dr. Leffell has extensive experience in Skin Cancer & Excision. He graduated from GENEVA GENERAL HOSPITAL / MARION S WHELAN SCHOOL OF NURSING in 1981. He is affiliated with medical facilities such as Bridgeport Hospital and Greenwich Hospital. He is accepting new patients.

5 Star Rating
Based on 14 reviews 5 Star Rating (14 reviews)

Practice

40 Temple St Ste 5A New Haven, CT 06510
(203) 785-3466

At a Glance

  • Areas of Expertise
    Dr. Leffell specializes in the areas of Dermatology & Internal Medicine. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ • See hospitals
  • Practices at Highly Recommended Hospital
    Patients recommend this hospital to family and friends. • See hospitals
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Dr. Leffell's Reviews

Likelihood to recommend Dr. Leffell

5.0

14 ratings, 4 with a written review
5 Star
100%
100%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
0%
0%

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RecentHighestLowestMost Helpful
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
Di J. in Stamford – Apr 10, 2018
×Post a ResponseAre you Dr. David Leffell, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 people found this helpful
Helpful
Ann Rerat in Trumbull, CT – Mar 30, 2017
×Post a ResponseAre you Dr. David Leffell, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
LFR in ORANGE, CT – Sep 30, 2016
×Post a ResponseAre you Dr. David Leffell, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
10 people found this helpful
Helpful
Jane in Riverside, CT – Jan 20, 2016
×Post a ResponseAre you Dr. David Leffell, MD?

Leave a review

How was your experience with Dr. Leffell?

Know Before You Go

About Me

biography

Dr. David Leffell, MD is an internist in New Haven, CT and has over 40 years of experience in the medical field. Dr. Leffell has extensive experience in Skin Cancer & Excision. He graduated from GENEVA GENERAL HOSPITAL / MARION S WHELAN SCHOOL...read more

  • Internal Medicine

  • Dermatology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Geneva General Hospital / Marion S Whelan School Of Nursing

    Medical School, 1981
American Board of Medical Specialties®
American Board of Dermatology®
- 
Dermatology
American Board of Internal Medicine®
- 
Internal Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

  • Best Doctors in New York, 13 years

  • Best Cancer Doctors in America, 7 years

  • Best Doctors in America, at least 1

Focus on Diabetes

Locations

Practice

Office40 Temple St Ste 5A New Haven, CT 06510
1

Practice

Office300 George St Fl 6 New Haven, CT 06511
2

Affiliated Hospitals

  • Greenwich Hospital

    5 Perryridge Rd
    Greenwich, CT 06830
    Recipient of 2
    hospital awards

    Patient Safety Excellence Award™ (2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    82%
    Patients said they were given information about recovering at home

    2% lower than the national average

    78%
    Patients said that doctors always listened to them and explained things well

    2% higher than the national average

    View all patient feedback

  • Yale New Haven Hospital

    20 York St
    New Haven, CT 06510
    Recipient of 6
    hospital awards

    America's 250 Best Hospitals Award™ (2025, 2024)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

    How patients felt about the care they received at this hospital.

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    76%
    Patients said that doctors always listened to them and explained things well
    View all patient feedback

  • Bridgeport Hospital

    267 Grant St
    Bridgeport, CT 06610
    Recipient of 5
    hospital awards

    How patients felt about the care they received at this hospital.

    83%
    Patients said they were given information about recovering at home

    1% lower than the national average

    77%
    Patients said that doctors always listened to them and explained things well

    1% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality